CVE-2007-1375: PHP

Medium severity, CVSS 5.0. EPSS: 8.5% chance of exploitation in the next 30 days.

Integer overflow in the substr_compare function in PHP 5.2.1 and earlier allows context-dependent attackers to read sensitive memory via a large value in the length argument, a different vulnerability than CVE-2006-1991.

Affected products

• PHP PHP: up to and including 5.2.1

Published 2007-03-10. Last modified 2026-06-16.